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Author : William F. Williams
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (818 download)
Download or read book MASH TL-3 Testing and Evaluation of a Steel Bridge Rail with Pickets written by William F. Williams and published by . This book was released on 2012 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William F. Williams (Transportation engineer)
Publisher :
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (122 download)
Download or read book MASH TL-3 Evaluation of 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition written by William F. Williams (Transportation engineer) and published by . This book was released on 2020 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the tests reported herein was to assess the performance of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition according to the safety-performance evaluation guidelines included in AASHTO MASH. The crash tests were performed in accordance with MASH TL-3, which involves two full-scale crash tests (MASH Tests 3-20 and 3-21). However, MASH states that when there are transitions between two barrier types with different stiffness, one from a more flexible barrier and the other to a more rigid barrier, a full-scale crash test is recommended for both types. Therefore, MASH Test 3-21 was performed at the transition from the thrie beam rail to bridge rail, and at the transition from the W-beam rail to thrie beam rail. This report provides details of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition, detailed documentation of the crash tests and results, and an assessment of the performance of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition for MASH TL-3 transition evaluation criteria. The 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition performed acceptably for MASH TL-3 transitions.
Author : William F. Williams
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (818 download)
Download or read book MASH Test 3-11 on the T131RC Bridge Rail written by William F. Williams and published by . This book was released on 2012 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger P. Bligh
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (726 download)
Download or read book MASH Test 3-11 on the Texas T101 Bridge Rail written by Roger P. Bligh and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William F. Williams (Transportation engineer)
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (122 download)
Download or read book MASH TL-4 Evaluation of 2019 Mash 2-Tube Bridge Rail written by William F. Williams (Transportation engineer) and published by . This book was released on 2019 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the tests reported herein was to assess the performance of a new, taller Alaska Multi-State 2-Tube Bridge Rail (re-designated as 2019 MASH 2-Tube Bridge Rail) according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials (AASHTO), Manual for Assessing Safety Hardware (MASH), Second Edition 2016. The crash tests performed were in accordance with MASH Test Level 4 (TL-4), which involves three tests on the 2019 MASH 2-Tube Bridge Rail. This report provides details of the 2019 MASH 2-Tube Bridge Rail, detailed documentation of the crash tests and results, and an assessment of the performance of the 2019 MASH 2-Tube Bridge Rail for MASH TL-4 evaluation criteria.
Author : William F. Williams (Transportation engineer)
Publisher :
ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (956 download)
Download or read book MASH Test 3-11 of the TxDOT T222 Bridge Rail written by William F. Williams (Transportation engineer) and published by . This book was released on 2016 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William F. Williams
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (733 download)
Download or read book MASH Test 3-11 of the TxDOT Single Slope Bridge Rail (type SSTR) on Pan-formed Bridge Deck written by William F. Williams and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Oscar Pena
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.:/5 (11 download)
Download or read book Development of a MASH TL-4 Steel, Side-mounted, Beam-and-post, Bridge Rail written by Oscar Pena and published by . This book was released on 2019 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new steel, side-mounted, beam-and-post, bridge rail was designed, crash-tested, and evaluated according to safety performance guidelines included in the American Association of State Highway and Transportation Officials Manual for Assessing Safety Hardware (MASH) for Test Level 4 (TL-4). The new bridge rail system was designed to be compatible to multiple concrete bridge decks utilized by the States of Illinois and Ohio. Bridge rail configurations were designed and optimized based on weight per foot, constructability, and safety. Post-to-rail and rail-to-rail connections were designed for the new bridge rail. Several concepts for these connections were configured, and after discussion with representatives from the Illinois and Ohio DOTs, a preferred concept was selected for full-scale crash testing with a single-unit truck, a pickup truck, and a small car. The new bridge rail consisted of three tubular steel rail elements supported by W6x15 (W150x22.5) steel posts mounted to the exterior, vertical edge of the concrete deck and spaced on 8 ft (2.4 m) on centers. The top rail element was an HSS 12-in. x 4-in. x 1⁄4-in. (HSS 304.8-mm x 101.6-mm x 6.4-mm) and the lower two rail elements were HSS 8-in. x 6-in. x 1⁄4-in. (HSS 203.2-mm x 152.4-mm x 6.4-mm). The centerline heights of the rail elements were 37 in. (940 mm), 28 in. (711 mm), and 16 in. (406 mm) above the surface of the deck for the top, middle, and bottom rails, respectively. Three MASH TL-4 crash tests were performed on the new bridge rail, which successfully contained and redirected the MASH TL-4 vehicles. All occupant risk measures and evaluation criteria were within MASH limits. For MASH test designation no. 4-12 with the single-unit truck, the impact severity did not meet the minimum limit of 142.0 kip-ft (180.6 kJ). Thus, test designation no. 4-12 is recommended to be re-run. However, a maximum roll angle of 36 degrees and a dynamic deflection of 4.3 in. (109.2 mm) represent a positive indication that a subsequent test with a single-unit truck would likely meet MASH TL-4 impact safety criteria.
Author : Dean C. Alberson
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.3/5 (555 download)
Download or read book TL-4 Crash Testing of the F411 Bridge Rail written by Dean C. Alberson and published by . This book was released on 2004 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Texas Department of Transportation (TXDOT) and Florida Department of Transportation (FDOT) frequently receive requests to provide aesthetically pleasing traffic rails for use on select bridges and roadways. TxDOT, in response to providing context sensitive design alternatives, initiated a project to develop additional aesthetically pleasing rail alternatives. Under a previous TxDOT project, the F411 bridge rail was constructed and crash tested to Test Level 3 (TL-3). The TL-3 test is a 4405-lb (2000 kg) pickup impacting the railing at 25 degrees and 62.2 mi/h (100 krn/h). This test requires both containment and stability, and non-overturning. Since some breakage of the parapet is possible, potential for vehicle snagging is likely. Vehicle snagging can contribute to vehicle instabilities in the redirection sequence and potential rollover. The TxDOT F411 bridge rail contained and redirected the vehicle, which remained upright during and after the collision period. The bridge rail met the required specifications for NCHRP Report 350 test 3-11. The objective of this research is the full-scale crash test and evaluation of the F411 to Test Level 4 (TL-4). The most direct approach for accomplishing the objectives of this task is to perform a full-scale TL-4 crash test of this railing design. The TL-4 vehicle is a single-unit box-van truck impacting the railing at 15 degrees and 49.7 mi/h (80 krn/h). While containment is required, overturning of the vehicle 90 degrees is an acceptable test outcome. The TxDOT F411 bridge rail performed acceptably for NCHRP Report 350 test 4-12. Based on the performance of the F411 bridge rail in the full-scale crash test to TL-4 test conditions, the F411 may be used where containment of 18,000 lb single-unit trucks is desired.
Author : Mojdeh Asadollahi Pajouh
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book MASH TL-3 Evaluation of Transition to Hawaii Modified Delaware Retrofit Thrie-beam Bridge Rail written by Mojdeh Asadollahi Pajouh and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brian G. Pfeifer
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (855 download)
Download or read book Safety Performance Evaluation of the Steel Backed Wood Rail to Bridge Rail Transition written by Brian G. Pfeifer and published by . This book was released on 1995 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pascual Mauricio
Publisher :
ISBN 13 :
Total Pages : 290 pages
Book Rating : 4.:/5 (11 download)
Download or read book Development of Post-to-deck Connections for Use in a MASH TL-4 Steel-tube Bridge Rail written by Pascual Mauricio and published by . This book was released on 2019 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new post-to-deck connection was designed for mounting an upcoming Manual for Assessing Safety Hardware (MASH) Test Level 4 steel-tube bridge rail to the side of the bridge deck to limit impact load transferred to the deck and to minimize the propensity for deck damage during impacts. With preference for the bridge rail system to be compatible for use on all deck configurations, the Illinois and Ohio Departments of Transportation desired the new system to attach to bridge decks comprised of concrete slabs or precasted prestressed, concrete box-beam girders. A new post-to-deck connection for a new MASH 2016 TL-4 steel-tube bridge rail was developed and tested. The connection featured a W6x15 steel post to be side-mounted to the deck. The post-to-deck connection was designed to fully develop the plastic bending capacity of the W6x15 post without causing deck damage. Post anchorage hardware was also designed to sustain impact loads transferred to the deck while preventing deck damage. Four post-to-deck connection concepts were developed and optimized through dynamic component testing. Only lateral impacts were conducted on the design concepts, side-mounted to a concrete box-beam girder. For the dynamic component testing, post-to-deck connection concepts varied on the type of welded post assembly connecting to longitudinal tube spacers, which in turn mounted to various post anchorages casted within the concrete box-beam girder. The resulting damage from each test varied from plastic deformation of the post between two plate attachments on the post assembly or post bending above one singular plate attachment due to the development of a plastic hinge near the surface of the deck. The post-to-deck connection featuring a singular plate attachment with longitudinal tube spacers was recommended for use based on the post bending near the surface of the deck, as intended.
Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.0/5 ( download)
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Association of State Highway and Transportation Officials
Publisher : AASHTO
ISBN 13 : 1560514698
Total Pages : 38 pages
Book Rating : 4.5/5 (65 download)
Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Terry A. Turner
Publisher : Springer Science & Business Media
ISBN 13 : 1475747055
Total Pages : 367 pages
Book Rating : 4.4/5 (757 download)
Download or read book Canmaking written by Terry A. Turner and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal protectin, including both metal treatments and coating systems. affords mutual protection for both can and contents. this book is the first reference to meld the knowledge of chemical companies and canmaking companies, covering materials and processes used in both protective and decorative aspects of metal packaging. Topics include basic substrates (aluminum and steel), demands of the markets served, basic metal-forming processes, and the specific decorative and protctive needs of different packaging types, with emphasis give to the technologies most likely to be used, such as ultraviolet curing. This practical reference gives readers a backround and familiarity with terminology and technology and gives insight into why certain technologies are used over others.
Author : Gabriella Coleman
Publisher : Verso Books
ISBN 13 : 1781689830
Total Pages : 497 pages
Book Rating : 4.7/5 (816 download)
Download or read book Hacker, Hoaxer, Whistleblower, Spy written by Gabriella Coleman and published by Verso Books. This book was released on 2015-10-06 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate book on the worldwide movement of hackers, pranksters, and activists collectively known as Anonymous—by the writer the Huffington Post says “knows all of Anonymous’ deepest, darkest secrets” “A work of anthropology that sometimes echoes a John le Carré novel.” —Wired Half a dozen years ago, anthropologist Gabriella Coleman set out to study the rise of this global phenomenon just as some of its members were turning to political protest and dangerous disruption (before Anonymous shot to fame as a key player in the battles over WikiLeaks, the Arab Spring, and Occupy Wall Street). She ended up becoming so closely connected to Anonymous that the tricky story of her inside–outside status as Anon confidante, interpreter, and erstwhile mouthpiece forms one of the themes of this witty and entirely engrossing book. The narrative brims with details unearthed from within a notoriously mysterious subculture, whose semi-legendary tricksters—such as Topiary, tflow, Anachaos, and Sabu—emerge as complex, diverse, politically and culturally sophisticated people. Propelled by years of chats and encounters with a multitude of hackers, including imprisoned activist Jeremy Hammond and the double agent who helped put him away, Hector Monsegur, Hacker, Hoaxer, Whistleblower, Spy is filled with insights into the meaning of digital activism and little understood facets of culture in the Internet age, including the history of “trolling,” the ethics and metaphysics of hacking, and the origins and manifold meanings of “the lulz.”
Author : Hans Michael Eßlinger
Publisher : John Wiley & Sons
ISBN 13 : 3527623493
Total Pages : 778 pages
Book Rating : 4.5/5 (276 download)
Download or read book Handbook of Brewing written by Hans Michael Eßlinger and published by John Wiley & Sons. This book was released on 2009-04-22 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference combines the technological know-how from five centuries of industrial-scale brewing to meet the needs of a global economy. The editor and authors draw on the expertise gained in the world's most competitive beer market (Germany), where many of the current technologies were first introduced. Following a look at the history of beer brewing, the book goes on to discuss raw materials, fermentation, maturation and storage, filtration and stabilization, special production methods and beermix beverages. Further chapters investigate the properties and quality of beer, flavor stability, analysis and quality control, microbiology and certification, as well as physiology and toxicology. Such modern aspects as automation, energy and environmental protection are also considered. Regional processes and specialties are addressed throughout the entire book, making this a truly global resource on brewing.
